Adjustable sign holder



FIG. 1 is a perspective view of the adjustable sign holder of my new design;

FIG. 2 is a foreshortened side elevational view thereof; the opposite side elevational view being a mirror image thereof;

FIG. 3 is a foreshortened top plan view thereof;

FIG. 4 is a foreshortened bottom plan view thereof; and,

FIG. 5 is an enlarged end elevational view thereof; the opposite end elevational view being a mirror image thereof. 

The ornamental design of an adjustable sign holder, as shown and described. 